/// <summary>
/// Sets delegates for runtime command generation.
/// Also updates index and vertex buffers, sets pipeline
/// </summary>
/// <param name="modelDescriptor">Model descriptor.</param>
/// <param name="sceneRuntimeDescriptor">Scene runtime descriptor.</param>
/// <param name="instancingData">Instance data enumerable.</param>
/// <typeparam name="T">The type of Vertex sent to the GPU</typeparam>
protected void FillRuntimeDescriptor <T>(ModelRuntimeDescriptor <T> modelDescriptor, SceneRuntimeDescriptor sceneRuntimeDescriptor, IEnumerable <InstanceData> instancingData) where T : struct, VertexRuntime, VertexLocateable
{
var model = modelDescriptor.Model;
modelDescriptor.TextureResourceLayout = modelDescriptor.InvokeTextureResourceLayoutGeneration(_factory);
modelDescriptor.TextureSampler = modelDescriptor.InvokeSamplerGeneration(_factory);
modelDescriptor.LoadShaders(_graphicsDevice);
byte vertexSizeInBytes = model.GetMesh(0).Vertices[0].GetSizeInBytes();
var meshCount = model.MeshCount;
for (int i = 0; i < meshCount; i++)
{
var mesh = model.GetMesh(i);
var meshBVH = model.GetMeshBVH(i);
DeviceBuffer vertexBuffer
= _factory.CreateBuffer(new BufferDescription(mesh.Vertices.LengthUnsigned() * vertexSizeInBytes, BufferUsage.VertexBuffer));
DeviceBuffer indexBuffer
= _factory.CreateBuffer(new BufferDescription(mesh.Indices.LengthUnsigned() * sizeof(ushort), BufferUsage.IndexBuffer));
modelDescriptor.VertexBufferList.Add(vertexBuffer);
modelDescriptor.IndexBufferList.Add(indexBuffer);
var allInstancePreEffects = RenderFlags.GetAllPreEffectFor(modelDescriptor.PreEffectsInstancingFlag);
foreach (var instanceData in instancingData)
{
var instanceDataBuffer = ResourceGenerator.AllocateInstanceDataBuffer(instanceData, _graphicsDevice, _factory);
if (instanceDataBuffer != null)
{
modelDescriptor.InstanceBufferLists[RenderFlags.NORMAL_ARRAY_INDEX].Add(instanceDataBuffer);
foreach (var preEffect in allInstancePreEffects)
{
modelDescriptor.InstanceBufferLists[RenderFlags.GetArrayIndexForFlag(preEffect)].Add(instanceDataBuffer);
}
}
}
_graphicsDevice.UpdateBuffer <T>(vertexBuffer, 0, ref mesh.Vertices[0], (vertexSizeInBytes * mesh.VertexCount).ToUnsigned());
_graphicsDevice.UpdateBuffer <ushort>(indexBuffer, 0, ref mesh.Indices[0], (sizeof(ushort) * mesh.IndexCount).ToUnsigned());
var resourceSet = modelDescriptor.InvokeTextureResourceSetGeneration(i, _factory, _graphicsDevice);
if (resourceSet != null)
{
modelDescriptor.TextureResourceSetsList.Add(resourceSet);
}
}
var rasterizerStateCullBack = new RasterizerStateDescription(
cullMode: FaceCullMode.Back,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true,
scissorTestEnabled: false
);
var rasterizerStateCullFront = new RasterizerStateDescription(
cullMode: FaceCullMode.Front,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true,
scissorTestEnabled: false
);
var rasterizerStateCullNone = new RasterizerStateDescription(
cullMode: FaceCullMode.None,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true,
scissorTestEnabled: false
);
modelDescriptor.InvokeVertexLayoutGeneration();
var shadowMapIndex = RenderFlags.GetArrayIndexForFlag(RenderFlags.SHADOW_MAP);
var omniShadowMapIndex = RenderFlags.GetArrayIndexForFlag(RenderFlags.OMNI_SHADOW_MAPS);
modelDescriptor.Pipelines[shadowMapIndex] = modelDescriptor.ShadowMapEnabled ? _factory.CreateGraphicsPipeline(PipelineGenerator.GenerateShadowMappingPreEffectPipeline(modelDescriptor, _childrenPre[RenderFlags.GetPreEffectArrayIndexForFlag(RenderFlags.SHADOW_MAP)].SceneRuntimeDescriptor, rasterizerStateCullFront, RenderFlags.SHADOW_MAP, _childrenPre[RenderFlags.GetPreEffectArrayIndexForFlag(RenderFlags.SHADOW_MAP)].FrameBuffer)) : null;
modelDescriptor.Pipelines[omniShadowMapIndex] = modelDescriptor.OmniShadowMapEnabled ? _factory.CreateGraphicsPipeline(PipelineGenerator.GenerateOmniShadowMappingPreEffectPipeline(modelDescriptor, _childrenPre[0].SceneRuntimeDescriptor, rasterizerStateCullNone, RenderFlags.OMNI_SHADOW_MAPS, _childrenPre[0].FrameBuffer)) : null;
var effectLayoutArray = modelDescriptor.FillEffectsResourceSet(_factory, sceneRuntimeDescriptor, _childrenPre);
var normalIndex = RenderFlags.GetArrayIndexForFlag(RenderFlags.NORMAL);
switch (modelDescriptor.VertexRuntimeType)
{
// Only cube maps for now
case VertexRuntimeTypes.VertexPosition:
//TODO: Use proper constants from RenderFlags.cs
modelDescriptor.Pipelines[normalIndex] = _factory.CreateGraphicsPipeline(PipelineGenerator.GeneratePipelineP(modelDescriptor, sceneRuntimeDescriptor, rasterizerStateCullFront, _graphicsDevice.SwapchainFramebuffer, effectLayoutArray));
break;
case VertexRuntimeTypes.VertexPositionNormal:
modelDescriptor.Pipelines[normalIndex] = _factory.CreateGraphicsPipeline(PipelineGenerator.GeneratePipelinePN(modelDescriptor, sceneRuntimeDescriptor, rasterizerStateCullBack, _graphicsDevice.SwapchainFramebuffer, effectLayoutArray));
break;
case VertexRuntimeTypes.VertexPositionNormalTextureTangentBitangent:
modelDescriptor.Pipelines[normalIndex] = _factory.CreateGraphicsPipeline(PipelineGenerator.GeneratePipelinePNTTB(modelDescriptor, sceneRuntimeDescriptor, rasterizerStateCullBack, _graphicsDevice.SwapchainFramebuffer, effectLayoutArray));
break;
case VertexRuntimeTypes.VertexPositionColor:
modelDescriptor.Pipelines[normalIndex] = _factory.CreateGraphicsPipeline(PipelineGenerator.GeneratePipelinePC(modelDescriptor, sceneRuntimeDescriptor, rasterizerStateCullBack, _graphicsDevice.SwapchainFramebuffer, effectLayoutArray));
break;
case VertexRuntimeTypes.VertexPositionTexture:
modelDescriptor.Pipelines[normalIndex] = _factory.CreateGraphicsPipeline(PipelineGenerator.GeneratePipelinePT(modelDescriptor, sceneRuntimeDescriptor, rasterizerStateCullBack, _graphicsDevice.SwapchainFramebuffer, effectLayoutArray));
break;
default:
throw new NotImplementedException($"{modelDescriptor.VertexRuntimeType.ToString("g")} not implemented");
}
}
public void AddPreEffectsVertexInstanceDelegate(uint id, Func <VertexLayoutDescription> vertexLayoutDelegate)
{
var flagIndex = RenderFlags.GetPreEffectArrayIndexForFlag(PreEffectsInstancingFlag);
VertexPreEffectsInstanceLayoutGenerationList.AddHandler(PreEffectEventHandlerKeys.GetKeys()[flagIndex], vertexLayoutDelegate);
}